public class STaticSingLeton {
    private STaticSingLeton(){
        System.out.println("apple");
    }

    private static STaticSingLeton getInstance(){
        return STaticSingLetonInner.INSTANCE;
    }
    static class STaticSingLetonInner{
        private static STaticSingLeton INSTANCE = new STaticSingLeton();
    }
}
class Test05{
    public static void main(String[] args) {
        STaticSingLeton.STaticSingLetonInner st = new STaticSingLeton.STaticSingLetonInner();
        STaticSingLeton.STaticSingLetonInner st1 = new STaticSingLeton.STaticSingLetonInner();
        System.out.println(st == st1);
    }
}